HEPA housing made of high quality cold rolled steel, the surface electrostatic spray, high efficiency filter containing the plenum, diffuser plate, and in the reconstruction of a new clean room, high efficiency filter can be used as a terminal device in a clean shed, etc. , with less investment, simple construction and so on. Integrated delivery outlet filter is a closed structure, low profile and light weight of the housing, the middle is equipped with a high efficiency filters. It has the best filter performance and the duct connected to the filter pack, for laminar and non-laminar flow rating 100000-10 clean room. Closed design, internal voids and prevent side leakage, over to the stringent requirements for clean room air quality. Its low profile, light weight and the advantages of disposable design makes it suitable for hospital operating rooms, laboratories, pharmaceutical industry, microelectronics, film and food processing factories.